Very few ancient philosophies can be traced back to an entrepreneur, but one can: Stoicism. Around 304 BC, a merchant named Zeno was shipwrecked on a trading voyage. He lost nearly everything. Making his way to Athens, he was introduced to philosophy by Crates of Thebes, a famous Cynic, which changed his life. Within a few years, Stoic philosophy would be born. As Zeno later joked, ‘I made a prosperous voyage when I suffered shipwreck.’ Since then, Stoicism has been a source of guidance,